Event between 01OQ108 and star GA0720:05717708 with event index number of 1068193
Geocentric closest approach at 2021/04/20 04:31:53 UTC
J2000 position of star is 15:50:42.9 -17:48:28
Equinox of date position of star is 15:51:56.2 -17:52:15
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 120 degrees from the moon.
Moon is 49% illuminated.
TNO apparent brightness V=23.2
TNO is 45.9 AU from the Sun
and 45.0 AU from the Earth.
The TNO is moving 21.2
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 716 seconds.
The 1-sigma cross-track error in the shadow position is
4097 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 13.6 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 01OQ108, (2021/04/20 04:32UT) Object RA Dec mag sep mel Antares 16:30:43.0 -26:28:39 0.9 12.43 131 8Bet1Sco 16:06:40.7 -19:51:43 2.6 4.02 124 46The Lib 15:55:02.5 -16:47:25 4.3 1.31 120 PPM 230811 15:51:05.6 -17:57:56 7.2 0.22 120 01OQ108 15:51:56.2 -17:52:15 16.4 120 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 01OQ108, (2021/04/20 04:32UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.43 131 8Bet1Sco 16:05:26.2 -19:48:20 2.6 4.02 124 46The Lib 15:53:49.7 -16:43:43 4.3 1.31 120 PPM 230811 15:49:52.4 -17:54:07 7.2 0.22 120 01OQ108 15:50:42.9 -17:48:28 16.4 120 Positions are for J2000
Event circumstances last updated at 2021/04/17 22:50:05 UT
Marc W. Buie, Southwest Research Institute